GDM - Electronic Data Collector (EDC)

Electronic Data Collector (EDC)

	EDC (Electronic Data Collector) is an add-in that connects ARM software to supported data collection applications (such as ARM Mobile or TDCx). Export your trials and certain favorites lists from ARM, to be used by the data collection app. Seamlessly import recorded assessments back into the ARM trials when returning from the field.
	Check out the Electronic Data Collector Comparison below to view the different features of each EDC application.

Electronic Data Collector comparison

Feature	ARM Mobile	TDCx	Excel Rating Shell
Run on choice of hardware	iOS or Android	Windows	Any
Data entry features
Touch number keypad for data entry	Device-specific	Integrated
One-touch shortcut keys to enter 100, 0, mark missing data, or duplicate the previous assessment value		•
Set default assessment value to reduce data entry time	•
Single key press for 1-digit assessment scale values (0-9)	•	•
Ensure typed assessment values are in a valid range, such as 0-100%	•	•
Set cursor order to next logical assessment cell	•	•
Zoom editor for improved visibility		•	•
Simplified assessment header and plot description	•	•	•
"Blind assessment" option to hide treatment numbers		•	•
Access ARM dictionaries so valid data entry codes are used	Favorites lists	Favorites and full dictionary
Load Standard Evaluations (SEs) to describe assessments consistently	•	•
Data collection features
Store GPS coordinates at trial and plot level	•	•
Capture current GPS coordinates at trial and plot level	•	•
Document damaged plots, to exclude from analysis	•	•
Enter textual comment for each plot	•	•
Collect and update all supported trial information at trial site	Assessments only	•	Assessments only
Automatically saves assessment data at end of each plot	•	•
Automatically copies trial to SD backup card at trial close		•
Record assessment concurrently from multiple devices	•		•
Professional data transfer (no manual steps after data is recorded)	•	•
Plot pictures
Take pictures with built-in camera	•	•
Automatically link picture to the associated plot	•	•
Rename attached picture to associate with trial, treatment, plot, and assessment date	•	•
Automatically launch and align Windows camera app with ARM		•
Perform data quality checks immediately after data entry
Treatment Mean Standard Deviation Trial and Control Means AOV Means Table Outlier tool Box-whisker graph Assessment Map Heterogeneity & normality checks Completion Dashboard	• • •	• • • • • • •	• •

ARM Mobile = ARM Mobile app (requires EDC connection and data plan)

TDCx = Tablet Data Collector add-in (requires ARM license)

Excel Rating Shell = Excel spreadsheet created by ARM using "Push to Excel Rating Shell" feature

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Electronic Data Collector (EDC)

Electronic Data Collector comparison

Data entry features

Data collection features

Plot pictures

Perform data quality checks immediately after data entry

Treatment Mean

Standard Deviation

Trial and Control Means

AOV Means Table

Outlier tool

Box-whisker graph

Assessment Map

Heterogeneity & normality checks

Completion Dashboard

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